Gtk3 ui: Add libgtk3ui as a separate build component

chrome/browser/ui/libgtkui/print_dialog_gtk2.cc

Index: chrome/browser/ui/libgtkui/print_dialog_gtk2.cc
diff --git a/chrome/browser/ui/libgtk2ui/print_dialog_gtk2.cc b/chrome/browser/ui/libgtkui/print_dialog_gtk2.cc
similarity index 97%
rename from chrome/browser/ui/libgtk2ui/print_dialog_gtk2.cc
rename to chrome/browser/ui/libgtkui/print_dialog_gtk2.cc
index 5f7acef9e8fee8bee3d7730a11d4023ae73b16ab..a2f4fe9c81fabc45d46d05b92cc5af4007cca3f1 100644
--- a/chrome/browser/ui/libgtk2ui/print_dialog_gtk2.cc
+++ b/chrome/browser/ui/libgtkui/print_dialog_gtk2.cc
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "chrome/browser/ui/libgtk2ui/print_dialog_gtk2.h"
+#include "chrome/browser/ui/libgtkui/print_dialog_gtk2.h"
 
 #include <gtk/gtkunixprint.h>
 
@@ -19,8 +19,8 @@
 #include "base/macros.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
-#include "chrome/browser/ui/libgtk2ui/gtk2_util.h"
-#include "chrome/browser/ui/libgtk2ui/printing_gtk2_util.h"
+#include "chrome/browser/ui/libgtkui/gtk2_util.h"
+#include "chrome/browser/ui/libgtkui/printing_gtk2_util.h"
 #include "printing/metafile.h"
 #include "printing/print_job_constants.h"
 #include "printing/print_settings.h"
@@ -190,10 +190,10 @@ PrintDialogGtk2::~PrintDialogGtk2() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   if (dialog_) {
-    aura::Window* parent = libgtk2ui::GetAuraTransientParent(dialog_);
+    aura::Window* parent = libgtkui::GetAuraTransientParent(dialog_);
     if (parent) {
       parent->RemoveObserver(this);
-      libgtk2ui::ClearAuraTransientParent(dialog_);
+      libgtkui::ClearAuraTransientParent(dialog_);
     }
     gtk_widget_destroy(dialog_);
     dialog_ = NULL;
@@ -333,7 +333,7 @@ void PrintDialogGtk2::ShowDialog(
   DCHECK(!callback_.is_null());
 
   dialog_ = gtk_print_unix_dialog_new(NULL, NULL);
-  libgtk2ui::SetGtkTransientForAura(dialog_, parent_view);
+  libgtkui::SetGtkTransientForAura(dialog_, parent_view);
   if (parent_view)
     parent_view->AddObserver(this);
   g_signal_connect(dialog_, "delete-event",
@@ -554,9 +554,9 @@ void PrintDialogGtk2::InitPrintSettings(PrintSettings* settings) {
 }
 
 void PrintDialogGtk2::OnWindowDestroying(aura::Window* window) {
-  DCHECK_EQ(libgtk2ui::GetAuraTransientParent(dialog_), window);
+  DCHECK_EQ(libgtkui::GetAuraTransientParent(dialog_), window);
 
-  libgtk2ui::ClearAuraTransientParent(dialog_);
+  libgtkui::ClearAuraTransientParent(dialog_);
   window->RemoveObserver(this);
   if (!callback_.is_null()) {
     callback_.Run(PrintingContextLinux::CANCEL);